GroupIndex creates a set of mutually exclusive options

Member of Menu Item (PRIM_MITM)

Data Type - Integer

Details

The GroupIndex property defines a set of mutually exclusive menu options, allowing only one to be Checked.
 
The RadioItem property can also be used.

Example

In this example, whenever a menu item is clicked, its Checked property is automatically set to True.
 
As all 4 menu items belong to the same group, all other menu items are set to False.

Function Options(*DIRECT)
Begin_Com Role(*EXTENDS #PRIM_FORM) Clientwidth(897) Clientheight(384) Componentversion(2) Top(227) Left(222) Menubar(#MenuBar1)
 
   Define_Com Class(#PRIM_MBAR) Name(#MenuBar1) Parent(#COM_OWNER)
   Define_Com Class(#PRIM_MITM) Name(#MenuItem1) Caption('Item1') Displayposition(1) Parent(#MenuBar1)
   Define_Com Class(#PRIM_SMNU) Name(#SubMenu1) Parent(#MenuItem1)
   Define_Com Class(#PRIM_MITM) Name(#MenuItem2) Displayposition(1) Parent(#SubMenu1) Caption('Item') Groupindex(1)
   Define_Com Class(#PRIM_MITM) Name(#MenuItem3) Displayposition(2) Parent(#SubMenu1) Caption('Item') Groupindex(1)
   Define_Com Class(#PRIM_MITM) Name(#MenuItem4) Displayposition(3) Parent(#SubMenu1) Caption('Item') Groupindex(1)
   Define_Com Class(#PRIM_MITM) Name(#MenuItem5) Displayposition(4) Parent(#SubMenu1) Caption('Item') Groupindex(1)
 
End_Com

See also

All Component Classes

Technical Reference

Febuary 18 V14SP2